I have (and USED) an Ontario Spec Plus pilots' survival knife. It's a solid chunk of steel with a solid handle. No shine, no bits of style, no BS! It came with a very nice fitting, well made sheath also. I can't think of a way I can break the knife, even the tip is heavy duty. The finish on the grind isn't perfect, but for the price you can't ask for more.
I think I grabbed it on ebay for around $25.
There are a bunch of sizes and designs in the Spec Plus line.